Etymologically

Etymology and origin of the Latin word infusus

Confidence
Established
Formation
Derivation
First attested
23–79 Pliny the Elder, Natural History More words from the 1st century
Ultimate origin
Latin infundō
Etymology tree
inherited borrowed derived
Latin fundus
French fond
English fund
Italian fondo
Spanish fondo
Latin fundō
Latin infundō
Latin infūsus
English infuse
From the same root
Latin funditus ← fundus
Latin lātifundium ← fundus
Latin profundus ← fundus
French foncer ← fond
Latin circumfundō ← fundō
Latin cōnfundō ← fundō
Latin dēfundō ← fundō
Latin diffundō ← fundō
Latin effundō ← fundō
Latin fundāmentum ← fundō
Latin fundātiō ← fundō
Latin fundātor ← fundō
Latin fundātus ← fundō
Latin fūsiō ← fundō
Latin fūtilis ← fundō
Latin interfundo ← fundō
Latin offundō ← fundō
Latin perfundō ← fundō
Latin profundō ← fundō
Latin refundō ← fundō
Latin suffundō ← fundō
Latin superfundō ← fundō
Latin trānsfundō ← fundō
Spanish confundir ← fundō
Latin īnfundibulum ← infundō
Latin īnfūsiō ← infundō

Forms

infūsus m (genitive infūsūs); fourth declension; only the ablative infūsū is found[1][2][3]

Etymology

It is formed from Latin infundō (“to pour in”) + -tus, the verbal noun of the verb, and means the same as infūsiō.[1][4]

Earliest recorded meaning

Its only certain record is in Pliny the Elder's Natural History, in the ablative infūsū: storax is said to cure noises in the ears when it is poured in.[1][2][5]

Semantic evolution

The word never became common: the TLL knows no other sure instance, and regards readings of it in Apicius as wrongly transmitted.[4] The usual noun for a pouring in remained infūsiō, and infūsus is otherwise the perfect participle of infundō.[1][2][6]

Timeline

  • 23/24–79 AD – Pliny the Elder uses the ablative infūsū of pouring a remedy into the ear.[1][5]

Meanings

Noun

  1. A pouring in, an injection (of a liquid); the same as infūsiō.[1][2][3]

References

  1. ^ a b c d e f Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  2. ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  3. ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  4. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  5. ^ a b Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.

Borrowed into

Cite this entry

“Infusus.” Etymologically, 7 Nov. 2026, etymologically.com/la/infusus. Accessed 8 Nov. 2026.

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